Hat rack



FIG. 1 is a top plan view of a hat rack showing my new design wherein the bottom plan view is identical thereto;

FIG. 2 is a front view thereof;

FIG. 3 is a side elevational view thereof wherein the opposite side view is identical thereto; and,

FIG. 4 is a rear elevational view thereof. 

The ornamental design for a hat rack, as shown and described. 